Sent Email not being received thru App

Mary Oates 0 Reputation points
2026-10-11T21:52:06.5666667+00:00

After a painful 2hours with Microsoft and getting three different people who all said they can't help I am finding it hard to believe I am the only person with this issue

When I send email the recipients are not receiving (sent test to myself)

I was having this issue with the outlook App and also web browser the second person was able to get web- browser to work, when I asked what happened, the answer was it is an Outlook glitch (omg)! Then I asked about App I got transferred again and was told to talk to outlook which was the second person. Ever since I purchased 365 have had nothing but issue with outlook.

Hoping someone can help me with my Outlook sending issues

Thank you in advance

Outlook | Windows | New Outlook for Windows | For home
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  1. Chloe-V 13,960 Reputation points Microsoft External Staff Moderator
    2026-10-12T02:53:58.69+00:00

    Hi @Mary Oates

    I’m sorry you had to spend two hours being transferred between support agents without receiving a clear resolution. I understand how frustrating it is when messages appear to send but never reach the recipients.

    Since sending now works in Outlook on the web but the problem continues in New Outlook for Windows, this points more toward the app’s local state or synchronization rather than the mailbox itself.

    Please try the following:

    • In New Outlook, select View > Sync, then send a simple text-only test message without a signature, attachment, image, or link.
    • Check whether the message remains in Outbox or appears in Sent Items.
    • Check your Inbox and Junk Email folders for any non-delivery report or message from “postmaster.”
    • Close Outlook, then open Windows Settings > Apps > Installed apps > Outlook (new) > Advanced options and select Repair.
    • If Repair does not help, select Reset. You may need to sign in and add your accounts again afterward.

    Please confirm whether the test message appears in Sent Items and whether you receive any delivery notice. This will help determine whether the message was submitted by the app or rejected after sending.

    If the answer is helpful, please click "Yes". If you have extra questions about this answer, please click "Comment".   

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.  

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